2 * Sone - ParserFilter.java - Copyright © 2011 David Roden
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 package net.pterodactylus.sone.template;
20 import java.io.IOException;
21 import java.io.StringReader;
24 import net.pterodactylus.sone.core.Core;
25 import net.pterodactylus.sone.data.Sone;
26 import net.pterodactylus.sone.text.FreenetLinkParser;
27 import net.pterodactylus.sone.text.FreenetLinkParserContext;
28 import net.pterodactylus.util.template.Filter;
29 import net.pterodactylus.util.template.TemplateContext;
30 import net.pterodactylus.util.template.TemplateContextFactory;
33 * Filter that filters a given text through a {@link FreenetLinkParser}.
35 * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
37 public class ParserFilter implements Filter {
40 private final Core core;
42 /** The link parser. */
43 private final FreenetLinkParser linkParser;
46 * Creates a new filter that runs its input through a
47 * {@link FreenetLinkParser}.
51 * @param templateContextFactory
52 * The context factory for rendering the parts
54 public ParserFilter(Core core, TemplateContextFactory templateContextFactory) {
56 linkParser = new FreenetLinkParser(templateContextFactory);
63 public Object format(TemplateContext templateContext, Object data, Map<String, String> parameters) {
64 String text = String.valueOf(data);
65 String soneKey = parameters.get("sone");
66 if (soneKey == null) {
69 Sone sone = (Sone) templateContext.get(soneKey);
71 sone = core.getSone(soneKey, false);
73 FreenetLinkParserContext context = new FreenetLinkParserContext(sone);
75 return linkParser.parse(context, new StringReader(text));
76 } catch (IOException ioe1) {
77 /* no exceptions in a StringReader, ignore. */